Mapas de la Vía Láctea

Muddy Creek in Edgewater, Maryland is the site of a major makeover. The land around the stream has worn down. Find out what caused Muddy Creek to erode, and the many steps involved in saving it. Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process, from the initial research and brainstorming sessions, through the design and testing ...

These stocky, sturdy board books are perfect for little hands and stand up to lots of page turning as toddlers discover the amazing world of the farm.

Daniel got the best birthday present in the world: his grandfather's magic briefcase! What tricks is it hiding? What surprises does it contain? Close your eyes and make a wish. This book is full of magic!

Estés despierto o durmiendo, tu cuerpo no deja de funcionar. ¿Sabes cómo? ¡Lo descubrirás en este divertidísimo cómic! ¿Sabías que nuestro esqueleto tiene DOSCIENTOS SEIS huesos? ¿O que tu intestino delgado puede medir OCHO METROS? ¿Y que el cerebro está conectado con TODO tu cuerpo? Cada una de las partes del cuerpo humano tiene sus curiosidades, desde el pelo hasta las uñas de los pies, los pulmones o el corazón. Los órganos funcionan todo el día, incluso mientras dormimos, pero... ¿cómo lo hacen? ¡Abre este cómic y alucina con los secretos de tu cuerpo! _____________...

Describes the frogs, toads, and salamanders of Mexico's Yucatan Peninsula, looking particularly at the wide variety of adaptations found in the few species that dwell there.